Definition: In this task, you are given a text which is the body of a document. Your job is to classify the topic of the document into these categories: 1)Company, 2)Educational Institution, 3)Artist, 4)Athlete, 5)Office Holder, 6)Mean of transportation, 7)Building, 8)Natural place, 9)Village, 10)Animal, 11)Plant, 12)Album, 13)Film, 14)Written work. Your output should be the category number. Don't generate anything apart from numbers 1-14.
Input: Text:  The LK-1 (Leningradskii Kombinat - Leningrad combine) (a.k.a. Fanera-2 – Plywood no.2) (a.k.a. NIAI-1) was a four-seat cabin aircraft designed and built in the USSR from 1933.

6